Given the following:
– stock a expected return= 0.28, standard deviation = 0.40
– stock b expected return= 0.16, standard deviation = 0.25
if stock a and stock b have a positive correlation of 0.48, which portfolio represent the minimum variance portfolio?

(1) weight of stock a in the minimum variance portfolio:

(2) weight of stock b in the minimum variance portfolio:

(3) the expected return and standard deviation of this minimum variance portfolio: and

can you explain how to do these?

Which of the following pairs is most similar to each other? a. barter goods and fiat money b. digital money and barter goods c. fiat money and digital money d. commodity money and digital money

The hawthorne works was a large western electric factory with 45,000 employees. during the 1920s and 1930s, hawthorne works was the site of some well-known industrial studies. in one of the studies, researchers investigated the impact of different working conditions on worker productivity. prior to the start of the study, researchers secretly measured workers' productivity for several weeks. then researchers chose two workers, who then chose their own teams. the teams were separated from the general workforce and completed their work in different experiment rooms where the researchers could observe them more easily. over a 5-year period researchers manipulated the structure of the workday for each team (number and duration of breaks and number of hours per shift). for each of these changes in working conditions, the researchers measured the effect on productivity. for some conditions, such as frequent short breaks, workers rebelled by intentionally decreasing productivity.why did the researchers secretly measure the workers' productivity before creating the two treatment groups? a, to create similar treatment groups so that a cause-and-effect relationship could be establishedb, to draw conclusions about the productivity of all workers in the plant based on the test groupsc, to directly control for confounding variablesd, to provide a baseline for measuring worker productivity

Which of the following is a reason why it is important for students to study strategy and the strategic management process? answers: studying strategy and the strategic management process can give students tools to evaluate the strategies of firms that may employ them.it can be very important to a new hire's career success to understand the strategies of the firm that hired them and their place in implementing these strategies.while strategic choices are generally limited to very experienced senior managers in large organizations, in smaller and entrepreneurial firms many employees end up being involved in the strategic management process.all of these.